Do you want to take the risk with Hawley Retainer ?

[Anonymous]

Aim:
The aim of this study was to compare the clinical effectiveness of Hawley and VFRs (vacuum formed retainers) over a 6-month period of retention. The study design was a randomized clinical trial, performed in a single orthodontic practice.

Result:
The results showed significantly greater changes in irregularity of the incisors in the Hawley group than in the VFR group at 6 months. There were otherwise no statistically significant differences.

Conclusions:
VFRs are more effective than Hawley retainers at holding the correction of the maxillary and mandibular labial segments. The median differences were 0.56 mm in the mandibular arch and 0.25 mm in the maxillary arch. Although this difference is unlikely to be clinically significant in the maxillary arch, it could be considered clinically significant in the mandibular arch if located to a single tooth displacement.

        

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